All releases of libevent

Release Notes: This release fixed several memory leaks in the
HTTP layer, fixed signal handling for
multi-threaded applications, and fixed issues with
the timer cache when leaving or entering the event
loop.

Release Notes: Several new APIs have been introduced (event_base_new, event_reinit, event_loopbreak, etc.). RPC structures can now use 32-bit structure identifiers. The performance of the Windows backend has been improved. There are additional bug and correctness fixes.

Release Notes: This release contains a new RPC subsystem that
makes it easy to write distributed servers and
clients. Almost everything is documented via
Doxygen now. There have been a bunch of fixes and
improvements to evdns and evhttp. Libevent now
builds two additional libraries: libevent_core
(containing only the event core) and
libevent_extras (contained evdns, evhttp, and
evrpc). Performance was slightly improved due to
using a heap instead of red-black trees for
timeouts. Finally, Solaris' event ports are better
supported.

Release Notes: This release contains mostly reliability and portability fixes. Several problems on Solaris were fixed, the HTTP Server now includes a Date header by default, and several memory leaks in the HTTP and DNS layer were fixed.